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Corrosion Resistrant Silicon Nitride Heater Sheath

Corrosion Resistrant Silicon Nitride Heater Sheath introduction Si3N4 material is applicable for making molten aluminum liquid heater protection tube and the gas burner protection tube in metallurgical industry like aluminum, tin, lead, zinc etc. Si3N4 heater protection tube with castable...

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Product Details

Corrosion Resistrant Silicon Nitride Heater Sheath introduction 

Si3N4 material is applicable for making molten aluminum liquid heater protection tube and the gas burner protection tube in metallurgical industry like aluminum, tin, lead, zinc etc.

Si3N4 heater protection tube with castable refractory.

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Charcteristics of silicon nitride riser tube

Item

Material

Unit

Silicon Nitride

Bulk density

g/cm3

3.2

Water absorption

%

0

Flexural strength

MPa

750

Young's Modulus of Elasticity

Gpa

280

Fracture Toughness

MPa・m 1/2

6.5

Poisson's Ratio

_

0.28

Vickers Hardness

Gpa

13

Coefficient of Linear Thermal Expansion

×10-6/℃

3.4

Thermal Conductivity

W/(m・k)

30

Specific Heat

J/(g・k)

0.65

Volume Resistivity

Ω・cm

>1014

Heat Shock Resistance

800

Maximum Available Temperature

1200 

Our Advantages

a.With good thermal shock resistance and high temperature mechanical strength,therefore, the products can withstand severe thermal load of high temperature heaters. Repeated insertion and withdrawal of the products in the course of operation will not affect the performance. 

b.Low wettability against molten aluminum can reduce the contacting of slag on the protection tube, and provides easy maintenance and operation. 

c.Excellent insulation can assure no contact (insulation) between heater and molten aluminum or other molten metal. 

Packaging

We ensure to offer safe package and fast delivery for all our customers .

1.for big size cylinders : plastic pallet

2.for small size cylinders :polywood case with inner foam 

Shipping

1.By sea / By air / By courier (DHL, UPS, TNT, FEDEX, EMS express are available )

2.As customized requirements 

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Please feel free to send us your detailed requirements, you would be satisfied with our service.


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